Roof collar



June 2, 1925.

A. R. SMITH ROOF COLLAR Filed May 22, 1

Patented June 2, 1925.

UNITED STATES PATENT OFFICE.

ADDLPI-IUS B. SMITH, OF NO'RFOLK, VIRGINIA.

ROOF COLLAR.

Application filed May 22,

vide a device of this character which will Y which can be cheaply madein quantities.

i Vith these and other objects in view, my

- invention consists in certain novel and peculiar features ofconstruction and combination of parts, as hereinafter described andclaimed; and in order that it may be fully understood reference is to behad to the accompanying drawings in which similar reference charactersindicate corresponding partsin all the views.

Fig. l is a sectional elevation of the collar in position;

Fig. 2 is a side elevation;

Fig. 3 is a rear elevation; and

Fig. 4 is a section through the line ll of Fig. 2.

In the drawings 1 is the vent pipe which projects through the roof 2 andin order to make a tight connection between the roof and pipe, it iscustomary to provide a sheet metal flashing 8, which is provided with aplate portion 4 adaptedto be secured to the roof, and a collar 5 adaptedto fit around the vent pipe. When 1n position, the collar 5 is tightenedup to fit close around the pipe and thereafter cement is applied aroundthe joint to make it water tight. Due to the;

relative movement of the flashing and the vent pipe which may be causedby the expansion or contraction of the vent pipe or the sagging of theroof or from other causes, the cement will gradually work out of itsposition with the result that the connection will permit leakage and therain will run down the pipe onto the ceiling below.

In order to obviate this defect of construction, I attach my collar 6directly to the vent pipe and unconnected to the flashing, so that 1923.Serial No. 640,807.

regardless of the relative movement of the pipe and roof the connectionwill not leak. While devices of this character have been inventedbefore, operating according to this principle, they have been socomplicated in structure and difficult of manipulation, to make theirextensive use prohibitive. The object of my invention therefore is tomake a simplified collar which can be very cheaply manufactured andwhich is readily applied. I do this by forming the collar out of asingle piece of lead. This collar may be shaped by casting or by anyother suitable metal forming operation. It comprises a skirt portion 7which is flared outwardly and out along a curve 8 so that by reversingthe position relative to the slant of the roof as shown in Fig. 1, thecollar can be used on steeper roofs. The collar is provided at its upperend with a band 9 and when the collar is cast, the ears 10 are formed inone piece which is sawed in two, to provide the two ears. In applyingthe collar in position the band 9 is expanded by pallingit apart thusopening up the slit 11. A bolt 12 passes through apertures in the earsfor tightening up the collar. Lead has the property of sticking to ironand when the bolt 12 is tightened up the plasticity of the lead causesit to fit tight and the propertyof sticking causes it to adhere, thusmaking in a simple manner a water tight oint.

From the above description it will be apparent that I have provided adevice of the character described, which possesses all the featuresenumerated as desirable and while I have illustrated the preferred formof the invention, it will be understood that I reserve the right to allchanges properly falling within the scope and spirit of the appendedclaims.

Therefore what I claim as new and desire to secure by Letters Patent is:I

A roof collar made of a single piece of lead cast into shape to providea skirt and a band, the band being provided. with a lug which is slit toprovide two ears, the collar being applied in position by first pullingapart the band to open up the slit and a bolt passing through aperturesin the ears for drawing the ears together to contract the band to holdthe collar in position.

In testimony whereof I aflix my signature.

ADOLPHUS R.

